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Finding the Fourth Proportional to 100,361.84, 150,542.82 and 25,487.60

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Solution

The fourth proportional to 100,361.84, 150,542.82 and 25,487.60 is: 38,231.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,361.84 : 150,542.82 = 25,487.60 : x
  2. Step 2: Convert to fraction form
    100,361.84/150,542.82 = 25,487.60/x
  3. Step 3: Cross multiply
    100,361.84x = 150,542.82 × 25,487.60
  4. Step 4: Simplify right side
    100,361.84x = 3,836,974,426.32
  5. Step 5: Solve for x
    x = 3,836,974,426.32/100,361.84
  6. Step 6: Final answer
    x = 38,231.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.